Malekzadeh, E., Alikhani, H. A., Savaghebi-Firoozabadi, G. R. and Zarei, M. (2011) “Influence of arbuscular mycorrhizal fungi and an improving growth bacterium on Cd uptake and maize growth in Cd-polluted soils”, Spanish Journal of Agricultural Research, 9(4), pp. 1213-1223. doi: 10.5424/sjar/20110904-069-11.